*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
li{
    list-style: none;
}
a,img{
    display: block;
}
a{
    text-decoration: none;
}
.TopNavDiv{
    width: 100%;
    height: calc(44vw/3.75);
    background-color:red;
    padding: calc(10vw/3.75) calc(16vw/3.75);
}
.backIcon{
    width: calc(12vw/3.75);
    height: calc(24vw/3.75);
    background-color: gold;
    background-image: url(../images/);
}